<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M4.5 3C2.02 3 0 5.02 0 7.5A4.5 4.5 0 0 0 4.5 12c1.91 0 3.6-1.2 4.24-3H12v1h3V9h1V6H8.74A4.523 4.523 0 0 0 4.5 3zm0 3C5.33 6 6 6.67 6 7.5S5.33 9 4.5 9 3 8.33 3 7.5 3.67 6 4.5 6z" opacity=".3" fill="#555555"/><path d="M11 11v1c0 .28.1.54.28.72l.78.78-.78.78c-.18.19-.28.45-.28.72v1h1c.28 0 .54-.1.72-.28l.78-.78.78.78c.18.18.45.28.72.28h1v-1c0-.27-.1-.53-.28-.72l-.78-.78.78-.78c.18-.18.28-.44.28-.72v-1h-1c-.27 0-.54.1-.72.28l-.78.79-.78-.79c-.18-.18-.44-.28-.72-.28z" fill="#555555"/></svg>